wording (sec 15)

Chapter15/Figures/figure-attention-distribution-based-on-gaussian-distribution.tex

@@ -102,7 +102,7 @@
 \draw[-,very thick] ([xshift=1.2em,yshift=2.2em]b6.north)--([xshift=1.7em,yshift=2.2em]b6.north);
 \draw[-,very thick] ([xshift=1.2em,yshift=1.9em]b6.north)--([xshift=1.7em,yshift=1.9em]b6.north);
 
-\node [anchor=south] (t1) at ([xshift=0em,yshift=6.7em]n4.north){$D$};
+\node [anchor=south] (t1) at ([xshift=0em,yshift=6.7em]n4.north){$D_i$};
 \draw[->] ([xshift=0em,yshift=0em]t1.west)--([xshift=-1em,yshift=0em]t1.west);
 \draw[->] ([xshift=0em,yshift=0em]t1.east)--([xshift=1em,yshift=0em]t1.east);
 \draw[-] ([xshift=1em,yshift=-0.5em]t1.east)--([xshift=1em,yshift=0.5em]t1.east);